Use MediaCodec.setOutputSurface() for fullscreen transitions on M.

media/gpu/avda_picture_buffer_manager.cc

Index: media/gpu/avda_picture_buffer_manager.cc
diff --git a/media/gpu/avda_picture_buffer_manager.cc b/media/gpu/avda_picture_buffer_manager.cc
index d0f13136ffdcf6ad3ca788f5592bbcc5551bb60b..4fe59e2df372d18632176cac163cca8cb23aece8 100644
--- a/media/gpu/avda_picture_buffer_manager.cc
+++ b/media/gpu/avda_picture_buffer_manager.cc
@@ -84,8 +84,13 @@ gl::ScopedJavaSurface AVDAPictureBufferManager::Initialize(int surface_id) {
   shared_state_ = new AVDASharedState();
 
   // Acquire the SurfaceView surface if given a valid id.
-  if (surface_id != SurfaceManager::kNoSurfaceID)
+  if (surface_id != SurfaceManager::kNoSurfaceID) {
+    if (surface_texture_) {
+      surface_texture_->ReleaseSurfaceTexture();
+      surface_texture_ = nullptr;
+    }
     return gpu::GpuSurfaceLookup::GetInstance()->AcquireJavaSurface(surface_id);
+  }
 
   // Otherwise create a SurfaceTexture.
   GLuint service_id;
@@ -109,34 +114,14 @@ void AVDAPictureBufferManager::Destroy(const PictureBufferMap& buffers) {
     surface_texture_->ReleaseSurfaceTexture();
 }
 
-uint32_t AVDAPictureBufferManager::GetTextureTarget() const {
-  // If we're using a surface texture, then we need an external texture target
-  // to sample from it.  If not, then we'll use 2D transparent textures to draw
-  // a transparent hole through which to see the SurfaceView.  This is normally
-  // needed only for the devtools inspector, since the overlay mechanism handles
-  // it otherwise.
-  return surface_texture_ ? GL_TEXTURE_EXTERNAL_OES : GL_TEXTURE_2D;
-}
-
-gfx::Size AVDAPictureBufferManager::GetPictureBufferSize() const {
-  // For SurfaceView, request a 1x1 2D texture to reduce memory during
-  // initialization.  For SurfaceTexture, allocate a picture buffer that is the
-  // actual frame size.  Note that it will be an external texture anyway, so it
-  // doesn't allocate an image of that size.  However, it's still important to
-  // get the coded size right, so that VideoLayerImpl doesn't try to scale the
-  // texture when building the quad for it.
-  return surface_texture_ ? state_provider_->GetSize() : gfx::Size(1, 1);
-}
-
 void AVDAPictureBufferManager::SetImageForPicture(
     const PictureBuffer& picture_buffer,
     gpu::gles2::GLStreamTextureImage* image) {
   auto gles_decoder = state_provider_->GetGlDecoder();
   RETURN_IF_NULL(gles_decoder);
-  RETURN_IF_NULL(gles_decoder->GetContextGroup());
-
-  gpu::gles2::TextureManager* texture_manager =
-      gles_decoder->GetContextGroup()->texture_manager();
+  auto* context_group = gles_decoder->GetContextGroup();
+  RETURN_IF_NULL(context_group);
+  auto* texture_manager = context_group->texture_manager();
   RETURN_IF_NULL(texture_manager);
 
   DCHECK_LE(1u, picture_buffer.client_texture_ids().size());
@@ -154,7 +139,7 @@ void AVDAPictureBufferManager::SetImageForPicture(
 
     // Also set the parameters for the level if we're not clearing the image.
     const gfx::Size size = state_provider_->GetSize();
-    texture_manager->SetLevelInfo(texture_ref, GetTextureTarget(), 0, GL_RGBA,
+    texture_manager->SetLevelInfo(texture_ref, kTextureTarget, 0, GL_RGBA,
                                   size.width(), size.height(), 1, 0, GL_RGBA,
                                   GL_UNSIGNED_BYTE, gfx::Rect());
 
@@ -172,34 +157,35 @@ void AVDAPictureBufferManager::SetImageForPicture(
   // matter.
   if (image && !surface_texture_)
     image_state = gpu::gles2::Texture::BOUND;
-  texture_manager->SetLevelStreamTextureImage(texture_ref, GetTextureTarget(),
-                                              0, image, image_state,
+  texture_manager->SetLevelStreamTextureImage(texture_ref, kTextureTarget, 0,
+                                              image, image_state,
                                               stream_texture_service_id);
-  texture_manager->SetLevelCleared(texture_ref, GetTextureTarget(), 0, true);
+  texture_manager->SetLevelCleared(texture_ref, kTextureTarget, 0, true);
 }
 
 AVDACodecImage* AVDAPictureBufferManager::GetImageForPicture(
     int picture_buffer_id) const {
   auto it = codec_images_.find(picture_buffer_id);
-  return it == codec_images_.end() ? nullptr : it->second.get();
+  DCHECK(it != codec_images_.end());
+  return it->second.get();
 }
 
 void AVDAPictureBufferManager::UseCodecBufferForPictureBuffer(
     int32_t codec_buf_index,
     const PictureBuffer& picture_buffer) {
-  // Make sure that the decoder is available.
-  RETURN_IF_NULL(state_provider_->GetGlDecoder());
-
   // Notify the AVDACodecImage for picture_buffer that it should use the
   // decoded buffer codec_buf_index to render this frame.
   AVDACodecImage* avda_image = GetImageForPicture(picture_buffer.id());
-  RETURN_IF_NULL(avda_image);
 
   // Note that this is not a race, since we do not re-use a PictureBuffer
   // until after the CC is done drawing it.
   pictures_out_for_display_.push_back(picture_buffer.id());
-  avda_image->set_media_codec_buffer_index(codec_buf_index);
-  avda_image->set_size(state_provider_->GetSize());
+  avda_image->SetBufferMetadata(codec_buf_index, !!surface_texture_,
+                                state_provider_->GetSize());
+
+  // If the shared state has changed for this image, retarget its texture.
+  if (avda_image->SetSharedState(shared_state_))
+    SetImageForPicture(picture_buffer, avda_image);
 
   MaybeRenderEarly();
 }
@@ -212,29 +198,12 @@ void AVDAPictureBufferManager::AssignOnePictureBuffer(
       codec_images_[picture_buffer.id()] = new AVDACodecImage(
           shared_state_, media_codec_, state_provider_->GetGlDecoder());
   SetImageForPicture(picture_buffer, gl_image.get());
-
-  if (!surface_texture_ && have_context) {
-    // To make devtools work, we're using a 2D texture.  Make it transparent,
-    // so that it draws a hole for the SV to show through.  This is only
-    // because devtools draws and reads back, which skips overlay processing.
-    // It's unclear why devtools renders twice -- once normally, and once
-    // including a readback layer.  The result is that the device screen
-    // flashes as we alternately draw the overlay hole and this texture,
-    // unless we make the texture transparent.
-    static const uint8_t rgba[] = {0, 0, 0, 0};
-    const gfx::Size size(1, 1);
-    DCHECK_LE(1u, picture_buffer.service_texture_ids().size());
-    glBindTexture(GL_TEXTURE_2D, picture_buffer.service_texture_ids()[0]);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, size.width(), size.height(), 0,
-                 GL_RGBA, GL_UNSIGNED_BYTE, rgba);
-  }
 }
 
 void AVDAPictureBufferManager::ReleaseCodecBufferForPicture(
     const PictureBuffer& picture_buffer) {
-  AVDACodecImage* avda_image = GetImageForPicture(picture_buffer.id());
-  RETURN_IF_NULL(avda_image);
-  avda_image->UpdateSurface(AVDACodecImage::UpdateMode::DISCARD_CODEC_BUFFER);
+  GetImageForPicture(picture_buffer.id())
+      ->UpdateSurface(AVDACodecImage::UpdateMode::DISCARD_CODEC_BUFFER);
 }
 
 void AVDAPictureBufferManager::ReuseOnePictureBuffer(
@@ -270,8 +239,6 @@ void AVDAPictureBufferManager::MaybeRenderEarly() {
   for (int i = front_index; i >= 0; --i) {
     const int id = pictures_out_for_display_[i];
     AVDACodecImage* avda_image = GetImageForPicture(id);
-    if (!avda_image)
-      continue;
 
     // Update the front buffer index as we move along to shorten the number of
     // candidate images we look at for back buffer rendering.
@@ -302,10 +269,8 @@ void AVDAPictureBufferManager::MaybeRenderEarly() {
   // first unrendered frame if there is back buffer space.
   first_renderable_image =
       GetImageForPicture(pictures_out_for_display_[backbuffer_index]);
-  if (!first_renderable_image ||
-      first_renderable_image->was_rendered_to_back_buffer()) {
+  if (first_renderable_image->was_rendered_to_back_buffer())
     return;
-  }
 
   // Due to the loop in the beginning this should never be true.
   DCHECK(!first_renderable_image->was_rendered_to_front_buffer());
@@ -326,4 +291,12 @@ bool AVDAPictureBufferManager::ArePicturesOverlayable() {
   return !surface_texture_;
 }
 
+bool AVDAPictureBufferManager::HasUnrenderedPictures() const {
+  for (int id : pictures_out_for_display_) {
+    if (GetImageForPicture(id)->is_unrendered())
+      return true;
+  }
+  return false;
+}
+
 }  // namespace media